To guarantee car exercise of securi

To guarantee car exercise of security and comfortable, should put road flat, and longitudinal, and cross three surface combined as subject linear to analysis research, plane and longitudinal surface linear of coordination combination will can in Visual Shang natural to induced driver of sight, and keep Visual of continuity, plain area terrain flat, longitudinal section to flat slope mainly, Shang, and downhill more concentrated in the in big, and in the bridgehead, due to has navigation requirements, deck elevation relative sides road elevation requirements high out many, so in bridgehead, deck usually set vertical curve, vertical curve radius to appropriate, Both highway specifications, and should not be made vertical curve lengths are too long and the bridgehead filled too high and increase the cost, generally considered in the selection of horizontal curve bridge orthogonal to the River in order to reduce the overall structure engineering and design and construction difficulties, save money and reduce cost.

結果 (中文) 1:

为了保证安全，舒适的汽车运动，不应该把道路平坦，纵向和跨三面结合也不受线性分析研究，规划和协调结合，将在视觉上自然的视线诱导驾驶员可以纵面线形和保持视觉的连续性，平原地区地势平坦，纵向部分，以平坡为主，上，下坡多的集中在大，并在桥头，因遭遇通航要求，桥面标高相对两侧道路标高要求高了许多，所以在桥头，桥面通常设置竖曲线，竖曲线半径适度，公路两种规格，而不应发誓竖曲线制作长度太长，桥头充满太高，增加了成本，在平曲线垂直于河大桥的选择，以减少整体结构设计与施工工程难度，节省资金，降低成本普遍认为。